Gaya APA
Dudal, ., Luis, B. (1965).
Dark Clay Soils Of Tropical And Subtropical Regions .
Roma:
Food And Agriculture Organization Of The United Nations.
Gaya MLA
Dudal, ., Luis, Bramao.
"Dark Clay Soils Of Tropical And Subtropical Regions".
Roma:
Food And Agriculture Organization Of The United Nations,
1965.
Text.